用于湿热带(TH)地区的电气产品,在滑动接触部份及两种不同镀层的接触处,涂一些“中性凡士林” (一般工业用凡士林带有酸性)能起良好的润滑及防电腐蚀作用。 目前,市场上这种凡士林的供应尚满足不了生产上的需要,因此,我厂经过不断研究和改进,自制“中性凡士林”终于成功。并且,已用于我厂生产的HS57TH型 For electrical products in the humid tropics (TH) area, some “Neutral Vaseline” (general industrial Vaseline with acidity) can be lubricated and protected against electrical contact at the sliding contact parts and at the contact between the two different coatings Corrosion. At present, the supply of such petrolatum on the market still can not meet the production needs. Therefore, after continuous research and improvement, the self-made “Neutral Vaseline” has finally succeeded. And, has been used in our factory production HS57TH type